Four Seasons 39124 A/C Expansion Valve

Four Seasons 39124 A/C Expansion Valve

Four Seasons 39124 is a brass TXV expansion valve for R134A air conditioning systems. It regulates refrigerant flow into the evaporator to help maintain stable cooling performance in the HVAC system.

Key Features

• Brand: Four Seasons Expansion Valve
• Part number: 39124
• Type: TXV (thermostatic expansion valve)
• Color/material: Brass
• Refrigerant type: R134A
• Direct-fit HVAC flow restrictor for selected vehicles

Product Details

This Four Seasons expansion valve is built for R134A-equipped systems and is listed as a TXV style valve. It is used in HVAC refrigerant control circuits to meter refrigerant entering the evaporator, supporting proper system balance and cooling output. This part cross-references UAC EX10115C for the same application.

Compatible With 1999-2002 Honda Passport, N/A; 1999-2001 Isuzu VehiCROSS, N/A; 1998-1999 Acura SLX, N/A; and 1995-1999 Subaru Legacy, N/A. The Four Seasons 39124 is also a fitment match for these vehicle-specific A/C repair needs when the original expansion valve is being replaced.

Common Issues This Part May Address

• Weak or inconsistent cabin cooling
• Improper refrigerant metering at the evaporator
• A/C performance loss caused by a worn TXV
• System imbalance after HVAC service
• Replacement need for a leaking or restricted expansion valve

Installation Notes and Tips

Verify the vehicle’s refrigerant type and HVAC configuration before installation. Replace the expansion valve only after confirming the rest of the A/C system is clean and free of contamination, and follow the service procedure for evacuation and recharge after repairs. Match the valve to the original application and inspect sealing surfaces during installation.

Quality Assurance

Four Seasons is a recognized aftermarket HVAC brand with a broad catalog of climate-control service parts. Part number 39124 is listed for specific Honda Passport, Isuzu VehiCROSS, Acura SLX, and Subaru Legacy applications.